The petite beauty was in town yesterday (September 15) to promote her latest movie, ‘Man Down’.

‘Man Down’ Photocall: I wish she added a Sophia Webster statement shoe to add some life to her Madewell romper, instead she keep the look simple with Christian Louboutin ‘ Altressa’ woven pumps.

‘Man Down’ Premiere: As we know, Kate’s style can be a tad predictable, so I really appreciated this slinky silhouette couretsy of Marc Jacobs. The Resort 2016 black broderie anglaise gabardine V neck dress keeps in line with Kate refined style, but I love how the organza insert and embellishments gives her look a rare alluring touch.

The 18 piece collection, priced from $58 -$238, is French romance (silk, lace, lots of stripes) meets New York City (sneakers, graphics, oversized totes) to create the perfect transitional wardrobe that can be worn in either city.

With the changing of seasons in mind, each piece is made to take you from late summer to early fall and beyond.

Two hallmarks of the collection are limited edition striped T-shirts, one declaring a love for NY ‘New York, My Love,’ and the other pledging a devotion to Paris, ‘Paris, Mon Amour.’

Look 2: Later on Monday evening, she was seen with beau Joshua Jackson, where she put the high fashion in high-street with a Forever21 windowpane-patterned top and matching culottes paired with Nicholas Kirkwood pearl-embellished sandals. The pop of hot pink took this casually effortless statement to a new level of chic fun.

Look 3: On Tuesday (June 9), Diane donned a Madewell pebble plaid shirt with cutoff denim shorts and boots. Styled with a straw hat, oxblood Cambridge Satchel ‘Twist Lock’ bag and retro shades, this look borrowed plenty of cues from festival dressing, but there’s no doubt that she rocked it with her cool-girl edge.

Katharine McPhee: The singer/actress selected the Ghurka ‘Rover’ bag in a nutty chestnut hue which coordinated perfectly with her tri-colour Madewell silk dress with a flounced skirt. I would’ve preferred her shoes in terracotta, but the look is great nonetheless.